Help!!!! White out

Started today, in viewport with nvdia selected. image totatlly whited out.
In texture view all is well.
The render is also totally whited out
This ain;t good
Thank you


white.jpg
1296 x 994 - 77K
Started today, in viewport with nvdia selected. image totatlly whited out.
In texture view all is well.
The render is also totally whited out
This ain;t good
Thank you
Comments
What happens if you click the defaults button in Render Settings?
Stays same, but just noticed an older scene appears correctly